Even though nearly 2,000 genetic tests are available today, most Americans have never taken one. (Save, perhaps, for newborn screening.) That may soon change, as the nation's largest businesses responsible for managing prescription benefits, Medco and CVS Caremark, delve into the DNA testing business. Taken together, the two companies cover more than 100 million Americans.
http://www.technologyreview.com/biomedicine/24513/?nlid=2736
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